riu.dk

Records from scan: 2026-09-28 14:02:26 · 1353ms total · last checked 2026-10-16 12:27 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

riu.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 204.168.186.55 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by riu-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
204.168.186.55	3600s	plesk01.rshosting.dk	AS24940	Hetzner Online GmbH	204.168.128.0/17	🇩🇪 Germany	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	riu-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::f 2a01:111:f403:ca09::26 2a01:111:f403:ca48::e 52.101.68.15 52.101.68.25 52.101.68.29 52.101.91.21	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr05cu00105.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.136
🔶 Autoconfig	204.168.186.55

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 51ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 124ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:204.168.186.55 -all

✉️ SPF#

Policy	Record (riu.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:204.168.186.55 -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-08 16:19:54

www	204.168.186.55 (AS24940) (address records, no CNAME)
www vs bare domain	Same network riu.dk: 204.168.186.55 (AS24940) www.riu.dk: 204.168.186.55 (AS24940)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

112ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026092702
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

35ms

39ms

AAAA

44ms

TXT

124ms

CAA

39ms

HTTPS

41ms

TLSA

754ms

SOA

0ms

MTA-STS

62ms

DNSSEC

112ms

SRV

51ms

Total

1353ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 14:02:26 shown	1353ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 13:18:47	916ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 07:10:02	1080ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 16:16:37	889ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 01:47:57	729ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:11:41	1002ms	2 NS 1 A 1 MX	🔒 Secure